No, it is not appropriate. Such stories involve vulgar and inappropriate content that goes against the norms of a healthy and respectful relationship. A relationship should be based on mutual respect, love, and positive communication.
It is completely unethical. Such stories involve highly inappropriate and non - consensual themes that violate basic moral and ethical boundaries in a relationship.
Rather than seeking such stories, we could shift our attention to healthy relationship stories, for example, how a couple overcomes difficulties together and grows stronger in their marriage.
I'm not sure specifically what that story is about as the description is rather unclear and could be interpreted in different ways. It might be about a woman having a new food experience related to a creampie (which could be a type of dessert), but without more context it's hard to say.
This kind of story involves non - consensual or immoral scenarios in most cases. If it is just some fictional or extremely inappropriate joke - like stories, it's better to firmly oppose it and communicate with your wife about positive and healthy relationship topics instead of trying to find a reaction to such improper content.
Rather than discussing such improper topics, we could explore stories about how a husband and wife support each other in their careers and personal growth.